reported CTD, if only a decimal point is entered in UFC manual radios

[Ugene]

Description

If only a decimal point is entered in the manual frequency field of either radio, the game crashes.

To reproduce

1. Instant Action -> Free Flight
2. Press "decimal point key"
3. Press "UFC Push button 5" or "UFC Push button 6"

[draconus]

Also crashes with "." and UFC PB10.

dcs.log LastMissionTrack.trk

[aitoa_tavaraa]

Crashes with any non number entered. Pls fix.